316361
When \(\mathrm{HCl}\) reacts with finely powdered iron, it forms ferrous chloride and not ferric chloride. Why?
1 \(\mathrm{HCl}\) is not strong enough to oxidise \(\mathrm{Fe}\) to \(\mathrm{Fe}^{3+}\)
2 \(\mathrm{H}_{2}\) produced in reaction if escapes prevents formation of ferric chloride
3 Iron prefer to be in \(\mathrm{Fe}^{+2}\) state
4 (1) and (3) are correct
Explanation:
\(\mathrm{HCl}\) reaction with iron produces \(\mathrm{H}_{2}\). \(\mathrm{Fe}+2 \mathrm{HCl} \rightarrow \mathrm{FeCl}_{2}+\mathrm{H}_{2}\) Liberation of hydrogen prevents the formation of ferric chloride.
CHXI11:THE P-BLOCK ELEMENTS
316362
Which oxide of the chlorine is used as a bleaching agent for paper pulp, textiles and in water treatment?
1 \(\mathrm{Cl}_{2} \mathrm{O}\)
2 \(\mathrm{ClO}_{2}\)
3 \(\mathrm{Cl}_{2} \mathrm{O}_{6}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Explanation:
\(\mathrm{ClO}_{2}\) is used as a bleaching agent for paper pulp and textiles and in water treatment.
CHXI11:THE P-BLOCK ELEMENTS
316363
The reaction \({\rm{3Cl}}{{\rm{O}}^{\rm{ - }}}{\rm{(aq)}} \to {\rm{ClO}}_{\rm{3}}^{\rm{ - }}{\rm{(aq) + 2C}}{{\rm{l}}^{\rm{ - }}}{\rm{(aq)}}\) is an example of
1 Oxidation reaction
2 Reduction reaction
3 Disproportionation reaction
4 Decomposition reaction
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316364
Assertion : Bleaching powder reacts with dilute acids to evolve chlorine. Reason : The chlorine liberated by the action of dilute acids on bleaching powder is called available chlorine.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The reaction involved is \(\mathrm{CaOCl}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{CaSO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2}\) The available chlorine may be defined as the \(\%\) of chlorine liberated when one mole of bleaching powder is treated with excess of dilute \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So option (2) is correct.
316361
When \(\mathrm{HCl}\) reacts with finely powdered iron, it forms ferrous chloride and not ferric chloride. Why?
1 \(\mathrm{HCl}\) is not strong enough to oxidise \(\mathrm{Fe}\) to \(\mathrm{Fe}^{3+}\)
2 \(\mathrm{H}_{2}\) produced in reaction if escapes prevents formation of ferric chloride
3 Iron prefer to be in \(\mathrm{Fe}^{+2}\) state
4 (1) and (3) are correct
Explanation:
\(\mathrm{HCl}\) reaction with iron produces \(\mathrm{H}_{2}\). \(\mathrm{Fe}+2 \mathrm{HCl} \rightarrow \mathrm{FeCl}_{2}+\mathrm{H}_{2}\) Liberation of hydrogen prevents the formation of ferric chloride.
CHXI11:THE P-BLOCK ELEMENTS
316362
Which oxide of the chlorine is used as a bleaching agent for paper pulp, textiles and in water treatment?
1 \(\mathrm{Cl}_{2} \mathrm{O}\)
2 \(\mathrm{ClO}_{2}\)
3 \(\mathrm{Cl}_{2} \mathrm{O}_{6}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Explanation:
\(\mathrm{ClO}_{2}\) is used as a bleaching agent for paper pulp and textiles and in water treatment.
CHXI11:THE P-BLOCK ELEMENTS
316363
The reaction \({\rm{3Cl}}{{\rm{O}}^{\rm{ - }}}{\rm{(aq)}} \to {\rm{ClO}}_{\rm{3}}^{\rm{ - }}{\rm{(aq) + 2C}}{{\rm{l}}^{\rm{ - }}}{\rm{(aq)}}\) is an example of
1 Oxidation reaction
2 Reduction reaction
3 Disproportionation reaction
4 Decomposition reaction
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316364
Assertion : Bleaching powder reacts with dilute acids to evolve chlorine. Reason : The chlorine liberated by the action of dilute acids on bleaching powder is called available chlorine.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The reaction involved is \(\mathrm{CaOCl}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{CaSO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2}\) The available chlorine may be defined as the \(\%\) of chlorine liberated when one mole of bleaching powder is treated with excess of dilute \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So option (2) is correct.
316361
When \(\mathrm{HCl}\) reacts with finely powdered iron, it forms ferrous chloride and not ferric chloride. Why?
1 \(\mathrm{HCl}\) is not strong enough to oxidise \(\mathrm{Fe}\) to \(\mathrm{Fe}^{3+}\)
2 \(\mathrm{H}_{2}\) produced in reaction if escapes prevents formation of ferric chloride
3 Iron prefer to be in \(\mathrm{Fe}^{+2}\) state
4 (1) and (3) are correct
Explanation:
\(\mathrm{HCl}\) reaction with iron produces \(\mathrm{H}_{2}\). \(\mathrm{Fe}+2 \mathrm{HCl} \rightarrow \mathrm{FeCl}_{2}+\mathrm{H}_{2}\) Liberation of hydrogen prevents the formation of ferric chloride.
CHXI11:THE P-BLOCK ELEMENTS
316362
Which oxide of the chlorine is used as a bleaching agent for paper pulp, textiles and in water treatment?
1 \(\mathrm{Cl}_{2} \mathrm{O}\)
2 \(\mathrm{ClO}_{2}\)
3 \(\mathrm{Cl}_{2} \mathrm{O}_{6}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Explanation:
\(\mathrm{ClO}_{2}\) is used as a bleaching agent for paper pulp and textiles and in water treatment.
CHXI11:THE P-BLOCK ELEMENTS
316363
The reaction \({\rm{3Cl}}{{\rm{O}}^{\rm{ - }}}{\rm{(aq)}} \to {\rm{ClO}}_{\rm{3}}^{\rm{ - }}{\rm{(aq) + 2C}}{{\rm{l}}^{\rm{ - }}}{\rm{(aq)}}\) is an example of
1 Oxidation reaction
2 Reduction reaction
3 Disproportionation reaction
4 Decomposition reaction
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316364
Assertion : Bleaching powder reacts with dilute acids to evolve chlorine. Reason : The chlorine liberated by the action of dilute acids on bleaching powder is called available chlorine.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The reaction involved is \(\mathrm{CaOCl}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{CaSO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2}\) The available chlorine may be defined as the \(\%\) of chlorine liberated when one mole of bleaching powder is treated with excess of dilute \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So option (2) is correct.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXI11:THE P-BLOCK ELEMENTS
316361
When \(\mathrm{HCl}\) reacts with finely powdered iron, it forms ferrous chloride and not ferric chloride. Why?
1 \(\mathrm{HCl}\) is not strong enough to oxidise \(\mathrm{Fe}\) to \(\mathrm{Fe}^{3+}\)
2 \(\mathrm{H}_{2}\) produced in reaction if escapes prevents formation of ferric chloride
3 Iron prefer to be in \(\mathrm{Fe}^{+2}\) state
4 (1) and (3) are correct
Explanation:
\(\mathrm{HCl}\) reaction with iron produces \(\mathrm{H}_{2}\). \(\mathrm{Fe}+2 \mathrm{HCl} \rightarrow \mathrm{FeCl}_{2}+\mathrm{H}_{2}\) Liberation of hydrogen prevents the formation of ferric chloride.
CHXI11:THE P-BLOCK ELEMENTS
316362
Which oxide of the chlorine is used as a bleaching agent for paper pulp, textiles and in water treatment?
1 \(\mathrm{Cl}_{2} \mathrm{O}\)
2 \(\mathrm{ClO}_{2}\)
3 \(\mathrm{Cl}_{2} \mathrm{O}_{6}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Explanation:
\(\mathrm{ClO}_{2}\) is used as a bleaching agent for paper pulp and textiles and in water treatment.
CHXI11:THE P-BLOCK ELEMENTS
316363
The reaction \({\rm{3Cl}}{{\rm{O}}^{\rm{ - }}}{\rm{(aq)}} \to {\rm{ClO}}_{\rm{3}}^{\rm{ - }}{\rm{(aq) + 2C}}{{\rm{l}}^{\rm{ - }}}{\rm{(aq)}}\) is an example of
1 Oxidation reaction
2 Reduction reaction
3 Disproportionation reaction
4 Decomposition reaction
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316364
Assertion : Bleaching powder reacts with dilute acids to evolve chlorine. Reason : The chlorine liberated by the action of dilute acids on bleaching powder is called available chlorine.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The reaction involved is \(\mathrm{CaOCl}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{CaSO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2}\) The available chlorine may be defined as the \(\%\) of chlorine liberated when one mole of bleaching powder is treated with excess of dilute \(\mathrm{H}_{2} \mathrm{SO}_{4}\). So option (2) is correct.